Content Management Server 6.40 installation

Hi Experts,

I Need to install content server management 6.40 on Windows 2008 R2 machine.

I have downloaded the DVD's Under Netweaver 7.3 EHP1

i.e..,

1. Content server 6.40

2. MaxDB 7.6

3. Installation master as well as the SWPM (Software Provisional Manager)

But while installing i am getting the error saying some DVD's were not present. Kindly help me on this.

Please find the attached error screenshot.

Thanks,

Narasimhan Krishna